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2.
Zootaxa ; 4609(3): zootaxa.4609.3.1, 2019 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-31717091

RESUMO

The deep-water mollusks collected during the Marion Dufresne (MD55) expedition to the southeastern Brazilian coast in 1987 have been studied in several recent works. The present paper lists and diagnoses 19 species belonging to the vetigastropod families Calliostomatidae, Colloniidae, Margaritidae, and Solariellidae. A new species, Calliostoma valkuri sp. nov., is described. It is mainly characterized by a very short teleoconch I, with limits marked by conspicuous varices and sculpture consisting of 3 spiral threads; sculpture of the teleoconch II consisting of spiral cords with thorn-like projections; and the presence of two strongly marked cords on the median portion of the whorls. Based on the MD55 samples and complementary specimens from other expeditions, the following species have their geographical and/or bathymetrical range extended: Bathymophila euspira, Calliostoma gemmosum, Calliostoma rude, Callogaza watsoni, Gaza compta, Falsimargarita terespira, Homalopoma boffii, Lamellitrochus cancapae comb. nov., Lamellitrochus pourtalesi, Margarites imperialis, and Solariella quinni.


Assuntos
Gastrópodes , Animais , Brasil , Expedições , Geografia , Moluscos
3.
Zootaxa ; 4608(3): zootaxa.4608.3.3, 2019 May 21.
Artigo em Inglês | MEDLINE | ID: mdl-31717132

RESUMO

Purcell (1908) and Simon (1910) described or reported 181 spiders from southern Africa based on the material collected by German zoologist and anthropologist Leonhard Schultze in 1903‒1905. The expedition route passed through several countries/territories that have since changed their boundaries and/or names. The two mentioned papers included 32 localities in three modern countries, aside from broader geographical regions (e.g. Hereroland) without specified localities. In this paper, we list all species reported or described, their current taxonomic status, provide the correct data about the countries from where these species were described, and their current distributions based on taxonomic publications. Purcell and Simon treated 81 and 100 species respectively, of which 49 and 67 respectively were new. A sizeable proportion of these species have since been transferred to other genera or proposed as synonyms. In evaluating all of the localities provided in the treatments of species in these two papers, as well as subsequent taxonomic literature, we found that 25 of the 68 nominative species treated by Purcell and 38 of the 92 species treated by Simon had incorrect distribution data in the World Spider Catalog (2019). We provide revised distribution information for all of these, and discuss the importance of correct information in the preparation of national faunistic lists.


Assuntos
Aracnídeos , Aranhas , África Austral , Distribuição Animal , Estruturas Animais , Animais , Expedições
4.
Zootaxa ; 4576(1): zootaxa.4576.1.3, 2019 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-31715774

RESUMO

Two new species of bathyal Primnoidae gorgonians (Octocorallia: Alcyonacea), Callogorgia europaea sp. nov., and Thouarella porcupinensis sp. nov., were collected during a research expedition of the Spanish Institute of Oceanography to the Porcupine Bank (off Ireland, northeastern Atlantic). In the present paper, both species are described, compared with their closest congeners, and their polyps and scleromes illustrated by scanning electron microphotographs.                                                                                                        Callogorgia europaea sp. nov. is the first species of the genus described from the northeastern Atlantic having abaxial scales with an external ornamentation of prominent longitudinal crests. Thouarella porcupinensis sp. nov. is the first one in the same area characterized by a planar ramification with isolated polyps, and marginal scales having several perpendicular ridges in their distal inner side instead of a pointed edge.


Assuntos
Antozoários , Animais , Expedições , Irlanda
5.
Zootaxa ; 4570(1): zootaxa.4570.1.1, 2019 Mar 22.
Artigo em Inglês | MEDLINE | ID: mdl-31715840

RESUMO

Hydrozoans are a conspicuous component of Antarctic benthic communitites. Recent taxonomic effort has led to a substantial increase in knowledge on the diversity of benthic hydroids from some areas of the Southern Ocean, including the Weddell Sea, the largest sea in the Antarctic region. However, the study of many hydrozoan taxa are still pending, and the diversity in this huge region is expected to be higher than currently known. In order to contribute to the knowledge of taxonomy, ecology and distribution of these cnidarians, a study of unpublished material collected by several German Antarctic expeditions aboard the RV Polarstern in the eastern sector of the Weddell Sea has been conducted. A total of 77 species belonging to 22 families and 28 genera of benthic hydroids have been inventoried, constituting the most prolific collection hitherto analyzed. Most species (81%) belong to Leptothecata, but the observed share of Anthoathecata (19%) is higher than in previous Antarctic hydrozoan studies. Symplectoscyphidae was the most speciose family with 16 representatives (22%), followed by Haleciidae with 10 (14%) and Staurothecidae with 8 (11%). The number of species known in the area was increased with 27 new records, including several species rarely documented. As a result, the Weddell Sea becomes the second Antarctic region in terms of hydrozoan diversity, with 89 species known to date. Novel data on the use of substrate, reproductive phenology, and bathymetric range are provided for the inventoried species.


Assuntos
Hidrozoários , Distribuição Animal , Animais , Regiões Antárticas , Ecologia , Expedições
6.
Zootaxa ; 4613(1): zootaxa.4613.1.13, 2019 06 04.
Artigo em Inglês | MEDLINE | ID: mdl-31716435

RESUMO

Macrocheles bolivari Iavorschi, 1987 was described in a volume of invited papers on hypogean invertebrate fauna collected primarily in Venezuela in 1982 during the first Romanian/Venezuelan Biospeleogical Expedition [corrected]. The volume, "Hypogean and hemiedaphic fauna from Venezuela and other countries of South America. 1" was recently brought to my attention by Bruce Halliday, who recognised the similarity between Iavorschi's M. bolivari and Allogynaspis flechtmanni Krantz, 2018, recently described from Brazil. Although some important opisthosomatic and gnathosomatic details were omitted from Iavorschi's description, the nature of the epigynal and dorsal shields (Iavorschi 1987, Figs 1A, B), along with the unusual fixed cheliceral digit dentition (Iavorschi 1987, Fig. 1C), leave little doubt that Macrocheles bolivari is a species of Allogynaspis. However, there are discrepancies between the descriptions of M. bolivari and A. flechtmanni, such that final verification of species synonymy may only be possible if type specimens of these two entities can be compared. Of special significance here are differences in sternal shield morphology and ornamentation (Krantz 2018, Fig. 2; Iavorschi 1987, Fig. 1A), and omission of any mention in Iavorschi's description of greatly enlarged setae on tarsus IV as described for A. flechtmanni (Krantz 2018, Fig. 6).


Assuntos
Ácaros e Carrapatos , Ácaros , Animais , Brasil , Dentição , Expedições , Venezuela
7.
Zootaxa ; 4567(1): zootaxa.4567.1.11, 2019 Mar 14.
Artigo em Inglês | MEDLINE | ID: mdl-31716446

RESUMO

Between mid-May and early June of 1839, members of the United States Exploring Expedition collected diverse anurans in the environs of Valparaíso, Chile, later described by Girard in 1853. Of this set of species, Metaeus timidus, described there as a new genus and species, attracts attention because is a name that practically disappeared from the herpetological literature. Its identification, along with that of the other Chilean taxa collected by the USEE (Cystignathus nebulosus Girard, 1853, Pleurodema bibroni Tschudi, 1838, Pleurodema elegans Bell, 1843, Bufo lugubrosus Girard, 1853, Bufo thaul Lesson, 1826 and Metaeus timidus Girard, 1853) are the main objectives of this contribution.


Assuntos
Anfíbios , Animais , Anuros , Chile , Expedições , Estados Unidos
8.
Zootaxa ; 4565(2): zootaxa.4565.2.4, 2019 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-31716477

RESUMO

Four deep-water species of stalked barnacles were collected by the manned submersibles Jiaolong and Shenhaiyongshi during recent expeditions. Trianguloscalpellum regium (Wyville-Thomson, 1873), collected from the Mariana Trench at a depth of 5,462 m, represents a new distribution record. Glyptelasma gigas (Annandale, 1916), Poecilasma litum Pilsbry, 1907 and Poecilasma obliqua Hoek, 1907, collected from the South China Sea, are recorded for the first time from a mud volcano environment. Detailed photographs of these four species are presented and their partial sequences of 16S rRNA and mt COI genes are provided.


Assuntos
Thoracica , Animais , China , Expedições , RNA Ribossômico 16S , Água
9.
Zootaxa ; 4671(1): zootaxa.4671.1.11, 2019 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-31716600

RESUMO

The recently described dung beetle tribe Byrrhidiini currently comprises seven genera and nineteen species (Davis et al. 2019). During a recent collecting expedition to the Brandberg Mountain [S21.11° E14.69°] in Namibia, a single male specimen, together with various disarticulated body parts of a new species belonging to this tribe were collected. It was found amongst dried hyrax (Procavia capensis) dung pellets between large granite boulders. This new species clearly fits the current definition of the genus Versicorpus Deschodt, Davis Scholtz, 2011. This raises the number of the constituent species of Versicorpus to three and that for Byrrhidiini to twenty.


Assuntos
Besouros , Animais , Expedições , Masculino , Namíbia
10.
Zootaxa ; 4668(4): zootaxa.4668.4.11, 2019 Sep 12.
Artigo em Inglês | MEDLINE | ID: mdl-31716614

RESUMO

The fire coral Millepora platyphylla Hemprich Ehrenberg, 1834 (Cnidaria, Hydrozoa) has a widespread Indo-Pacific distribution observed from the surface to 40 m (Razak Hoeksema 2003). However, its extirpation from the East Pacific (Gulf of Chiriqui, Panama) was documented after the 1982-1983 bleaching event (Glynn Weerdt 1991). Here, we report the discovery of 5 colonies of M. platyphylla from the eastern Pacific, specifically at Clipperton Atoll, during the TARA Pacific expedition (www.taraexpeditions.org).


Assuntos
Antozoários , Cnidários , Hidrozoários , Animais , Expedições , Panamá
11.
Int J Circumpolar Health ; 78(1): 1611327, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31038401

RESUMO

This study aimed to evaluate disease and injury trends among wintering members of the Japanese Antarctic Research Expedition. Obtained information is indispensable to the advancement of medical system and research. Summation was performed based on medical records of reports prepared by each expedition over the period 1956-2016. The clinical department's classification methods of the names of injuries and diseases varied among expeditions, but the names were integrated following the same classification. Of 1734 members (29 women), 6837 disease or injury cases (4 cases/person) were recorded. The rates of cases were as follows: surgical-orthopaedic (45.3%), internal medical (21.7%), dental (11.6%), dermatological (8.4%), ophthalmological (5.8%), otorhinolaryngological (5.3%), psychiatric (1.6%), and urological (0.1%) cases. There was no major change in rates by type of medical case in each expedition. This analysis made it possible to prepare medical facilities, content of physical examinations to select members, training of physicians before departure, preventive hygiene at sites, and medical research themes.


Assuntos
Epidemiologia/estatística & dados numéricos , Expedições/estatística & dados numéricos , Ferimentos e Lesões/epidemiologia , Regiões Antárticas/epidemiologia , Feminino , Nível de Saúde , Humanos , Japão/epidemiologia , Masculino , Saúde Mental , Estudos Retrospectivos , Estações do Ano
13.
Zootaxa ; 4548(1): 1-75, 2019 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-30790872

RESUMO

Shallow-water and littoral tanaids from the Southern French Polynesia Expedition, 2014 to Rapa Iti, Morane, Taravai and Mangareva, were examined with the tanaidomorphs represented by nine taxa, four of them described as new species within the genera Chondrochelia, Poorea, Triparatanais, and Zeuxoides. A new paratanaid genus is established, Periparatanais n. gen., and Nobili's Tanais seurati is rediscovered and redescribed as a species distinct from the Hawai'ian Zeuxo insularis n. comb. A broad comparison of tanaid faunas across the Polynesian and eastern Indo-Pacific regions based on the Marine Ecosystems of the World (MEOW) classification shows almost no species-level correspondences but several genera within four apseudomorphan and three tanaidomorphan families are consistently present.


Assuntos
Gastrópodes , Animais , Crustáceos , Ecossistema , Expedições , Polinésia
14.
Wilderness Environ Med ; 30(1): 93-95, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30718137

RESUMO

Skin infections are an important issue among participants in expedition-length adventure races. Prolonged stress, scant sleep, and water exposure mean that competitors are at risk of uncommon manifestations of infections. Ulcerative tinea pedis is an example of this. We present a case with characteristic clinical manifestations, including the "sandpaper symptom." There is limited literature exploring infectious foot complaints in expedition adventure racers. Beyond this case report, more research is needed to better understand incidence rates, risk factors, diagnostic measures, treatment, and prevention options.


Assuntos
Úlcera Cutânea/etiologia , Úlcera Cutânea/patologia , Esportes , Tinha dos Pés/complicações , Tinha dos Pés/patologia , Adulto , Expedições , Humanos , Masculino , Úlcera Cutânea/tratamento farmacológico , Tinha dos Pés/tratamento farmacológico
15.
Zootaxa ; 4544(1): 41-78, 2019 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-30647273

RESUMO

This contribution provides novel information on the diversity of gastropods from the Burdwood Bank, based on the material collected in this area, as part of the 2013 Summer Antarctic Expedition ("CAV 2013"), conducted by the oceanographic vessel PUERTO DESEADO. As part of this study, a total of 50 species are recognized, from which 19 are reported for the first time from Burdwood Bank, and at least nine other are probably new to science. Each species is here described and illustrated. The results arising from this study are combined with the previously published records in an attempt to critically compile the information for this area, with view to determine the local diversity of the group. As a result of this study, the diversity of gastropods almost double with respected to the previously published information, reaching a total of 79 species of shelled gastropods.


Assuntos
Gastrópodes , Animais , Regiões Antárticas , Expedições , Estações do Ano
16.
High Alt Med Biol ; 20(1): 45-55, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30648898

RESUMO

Understanding the process of successful adaptation to high altitude provides valuable insight into the pathogenesis of conditions associated with impaired oxygen uptake and utilization. Prepubertal children residing at low altitude show a reduced cerebrovascular response to exercise in comparison to adults, and a transient uncoupling of cerebral blood flow to changes in the partial pressure of end-tidal CO2 (PETCO2); however, little is known about the cerebrovascular response to exercise in high-altitude native children. We sought to compare the cerebral hemodynamic response to acute exercise between prepubertal children residing at high and low altitude. Prepubertal children (n = 32; 17 female) of Sherpa descent (Sherpa children [SC]) at high altitude (3800 m, Nepal) and maturational-matched (n = 32; 20 female) children (lowland children [LLC]) residing at low altitude (342 m, Canada). Ventilation, peripheral oxygen saturation (SpO2), PETCO2, and blood velocity in the middle and posterior cerebral arteries (MCAv and PCAv) were continuously measured during a graded cycling exercise test to exhaustion. At baseline (BL), PETCO2 (-19 ± 4 mmHg, p < 0.001), SpO2 (-6.0% ± 2.1%, p < 0.001), MCAv (-12% ± 5%, p = 0.02), and PCAv (-12% ± 6%, p = 0.04) were lower in SC when compared with LLC. Despite this, the relative change in MCAv and PCAv during exercise was similar between the two groups (p = 0.99). Linear regression analysis demonstrated a positive relationship between changes in PETCO2 with MCAv in SC (R2 = 0.13, p > 0.001), but not in LLC (R2 = 0.03, p = 0.10). Our findings demonstrate a similar increase in intra-cranial perfusion during exercise in prepubertal SC, despite differential BL values and changes in PETCO2 and SpO2.


Assuntos
Aclimatação/fisiologia , Altitude , Circulação Cerebrovascular/fisiologia , Exercício/fisiologia , Expedições , Adolescente , Velocidade do Fluxo Sanguíneo/fisiologia , Dióxido de Carbono , Criança , Teste de Esforço , Feminino , Humanos , Masculino , Nepal , Troca Gasosa Pulmonar/fisiologia
19.
Med Sci Sports Exerc ; 51(3): 556-567, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30308528

RESUMO

PURPOSE: To explore the effects of the first all-female transantarctic expedition on hormonal axes pertinent to reproductive and metabolic function. METHODS: Six females (age, 28-36 yr; body mass index, 24.2 ± 0.97 kg·m) hauled 80-kg sledges 1700 km in 61 d. Estimated average energy intake was 20.8 ± 0.1 MJ·d (4970 ± 25 kcal·d). Whole and regional body composition was measured by dual-energy x-ray absorptiometry 1 and 2 months before and 15 d after, the expedition. Body fat was also estimated by skinfold and bioimpedance immediately before and after the expedition. Basal metabolic and endocrine blood markers and, after 0.25 mg dexamethasone suppression, 1-h 10-µg gonadorelin and 1.0 µg adrenocortiocotrophin-(1-24) tests were completed, 39-38 d preexpedition and 4 to 5 d and 15 to 16 d postexpedition. Cortisol was assessed in hair (monthly average concentrations) and saliva (five-point day curves and two-point diurnal sampling). RESULTS: Average body mass loss was 9.37 ± 2.31 kg (P < 0.0001), comprising fat mass only; total lean mass was maintained. Basal sex steroids, corticosteroids, and metabolic markers were largely unaffected by the expedition except leptin, which decreased during the expedition and recovered after 15 d, a proportionately greater change than body fat. Luteinizing hormone reactivity was suppressed before and during the expedition, but recovered after 15 d, whereas follicle-stimulating hormone did not change during or after the expedition. Cortisol reactivity did not change during or after the expedition. Basal (suppressed) cortisol was 73.25 ± 45.23 mmol·L before, 61.66 ± 33.11 mmol·L 5 d postexpedition and 54.43 ± 28.60 mmol·L 16 d postexpedition (P = 0.7). Hair cortisol was elevated during the expedition. CONCLUSIONS: Maintenance of reproductive and hypothalamic-pituitary-adrenal axis function in women after an extreme physical endeavor, despite energy deficiency, suggests high female biological capacity for extreme endurance exercise.


Assuntos
Ambientes Extremos , Genitália Feminina/fisiologia , Sistema Hipotálamo-Hipofisário/fisiologia , Sistema Hipófise-Suprarrenal/fisiologia , Esqui/fisiologia , Adulto , Regiões Antárticas , Composição Corporal , Expedições , Feminino , Humanos
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